Thanks for all the well wishes. The actual birth was a bit hard. He had a bit of trouble breathing when he first came out, as well as temperature instability and low blood sugar. He spent the first hour or so in the NICU. It was very frustrating. We wanted to be happy because he was born, but couldn't really be too excited since he was not out of the woods yet (for the medically inclined, his initial APGAR score was 1). Fortunately, he recovered quickly and strongly, and they released him from the NICU in a couple of hours. We spent 2.5 days after birth at the hospital so they could monitor him frequently and make sure everything was okay.
It has been an absolute joy. Before the birth the main things you think and hear about can be a bit daunting, about how you're not going to get any sleep, etc. But any downside (lack of sleep) is overcome so many, many, many times by the upside of having a piece of the two of you living and breathing, it's just impossible to describe.
Already I've had the pleasure of experiencing pee and poop on me (is there a Murphy's Law that says whenever you open a diaper to check, that's when your baby will decide to "go"? And the best way to make pee or poop fly in a certain direction is to stand in that direction!).
He's doing great now. He seems to alternate in his sleeping patterns -- most nights he'll sleep 3-4 hours at a time, but on others he'll be up every hour. As my wife said after one sleepless night, "It's a good thing he's so cute."